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Jost, B; Cripton, P A; Lund, T; Oxland, T R; Lippuner, K; Jaeger, P; Nolte, L P (1998). Compressive strength of interbody cages in the lumbar spine: the effect of cage shape, posterior instrumentation and bone density. European spine journal, 7(2), pp. 132-41. Berlin: Springer 10.1007/s005860050043
